| Similarity | Rank | |
|---|---|---|
| roughest | 0.807 | 69730 |
| hardest | 0.795 | 8314 |
| tough | 0.777 | 2077 |
| trickiest | 0.698 | 70956 |
| tougher | 0.698 | 11878 |
| challenging | 0.684 | 2684 |
| grueling | 0.667 | 27099 |
| fiercest | 0.663 | 60895 |
| scariest | 0.653 | 40388 |
| harshest | 0.647 | 43817 |
| nastiest | 0.637 | 62933 |
| worst | 0.636 | 2493 |
| Tough | 0.626 | 20450 |
| meanest | 0.625 | 67836 |
| top-five | 0.615 | 68092 |
| heaviest | 0.611 | 26010 |
| best | 0.608 | 164 |
| smartest | 0.606 | 23393 |
| gruelling | 0.602 | 51100 |
| top-10 | 0.601 | 46055 |
| craziest | 0.597 | 42362 |
| Mudder | 0.597 | 95841 |
| fastest | 0.596 | 6059 |
| formidable | 0.595 | 13318 |
| biggest | 0.594 | 1560 |